The payment option commonly called 'bimonthly' is a bi-weekly payment option. However, some lenders offer a bimonthly payment service to homebuyers. With true bimonthly (or semi-monthly ) payments, you pay half of the monthly payment twice a month (for example, you pay 1/2 of the monthly payment on the 1st of the month, and the other half on the 15th). There will be a total of 24 semi-monthly payments in a twelve-month period and the lender must not hold the payment until the end of the month and apply it to the loan balance right away.
Semi-monthly or bi-monthly payment plans don't achieve the same results as the bi-weekly payment plan and are rarely used. On a 30 year fixed mortgage, for example, it will take 29 years and 11 months to pay off (1 month sooner than a
standard payment plan), and you will save only one month's interest.
Please note that if your lender withdraw half of the monthly payment from your bank account every half of the month, but apply the payments to your loan only once a month (as they did before), you will save nothing at all. This kind of bi-monthly payments, however, allow you the flexibility to schedule your monthly payments in a way that works better with your personal finances.
With bi-weekly payments, you pay half of the monthly mortgage payment every 2 weeks, rather than the full balance once a month. This is comparable to 13 monthly payments a year, which can result in faster payoff and lower overall interest costs. For example, the bi-weekly mortgage payment process can pay off a 30 year loan in approximately 19 years: